Mailbox for Mac is no longer in a closed beta, but has finally reached open beta, meaning all users can download the app without waiting for an activation code.
Dropbox first previewed Mailbox for Mac back in April and later started sending out activation codes in mid-August. Currently, Mailbox for Mac only supports Gmail, Google Apps and iCloud account emails.
Earlier today, Mailbox for iOS was updated for the iPhone 6 and iPhone 6 Plus and also gained support for customized swipe actions.
Click here to download Mailbox for Mac beta. Let us know how you like it.